<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title></title>
    <style type="text/css">
        #yy{
            font-size: 20px;
            text-shadow: 4px 6px 2px gray;
        }
        #ww{
            width: 100px;
            border: 1px solid black;
            word-wrap: break-word;
        }
    </style>
</head>
<body>
    <p>text-shadow</p>
    <p id="yy">我是文本阴影</p>
    <p>word-wrap</p>
    <p id="ww">sagehr3j hwmlfdwgqeherkfsfejd fdwrk46tufg dgqejtykufgsndsg hfwrjtktekgfkr</p>
</body>
</html>